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Author : Anonim
Publisher : Unknown
Page : 62 pages
File Size : 40,6 Mb
Release : 2003
Category : Electronic government information
ISBN : MINN:31951D024686504
Author : Michael Green,Ted Swem,Marie Morin,Robert Mesta,Mary Klee
Publisher : Createspace Independent Pub
Page : 32 pages
File Size : 51,6 Mb
Release : 2012-08-16
Category : Nature
ISBN : 1479141100
In 2003, the U.S. Fish and Wildlife Service (Service) implemented the first of five nationwide monitoring efforts for American Peregrine Falcons (Falco peregrinus anatum) (Peregrine Falcons) as described in the Service's post-delisting monitoring plan (USFWS 2003). More than 300 observers monitored 438 Peregrine Falcon territories across six monitoring regions. Monitoring in the Southwestern monitoring region fell short of the monitoring goal, where 36 of the targeted 96 territories were monitored; efforts are underway to implement full-scale monitoring in that region in 2006. The five other monitoring regions surveyed sufficient territories to meet the statistical criteria described in the post-delisting monitoring plan. Our estimates of territory occupancy, nest success, and productivity were above the target values that we set in the monitoring plan for those nesting parameters. The history of Peregrine Falcons in the United States, their population decline caused by environmental contaminants and their recovery following bans on those chemicals, is a tale of conservation success. By the late 1960's Peregrine Falcons had disappeared from the eastern United States and Midwest and were substantially reduced in the Western United States, Canada, and Mexico (Kiff 1988, Enderson et al. 1995). The Service officially listed Peregrine Falcons as endangered in 1970 under the Endangered Species Conservation Act of 1969, a precursor of the Endangered Species Act (ESA) of 1973 (for a history of listing actions see USFWS 1999) and set recovery goals based on abundance and productivity in four regions of the United States. In some of these regions it also established goals for reduced contaminant effects (USFWS 1982a, 1982b, 1984, 1991, 1993; Figure 1). By 1999, recovery goals had been almost completely met in all regions, primarily due to a ban on the use of DDT and other chlorinated hydrocarbons and to the successful captive breeding, rearing, and release of over 6,000 Peregrine Falcons (White et al. 2002). Peregrine Falcons were removed from the Service's List of Threatened and Endangered Species on August 25, 1999 (USFWS 1999). From 1999 to 2003 the Service developed a postdelisting monitoring plan (USFWS 2003) for Peregrine Falcons in cooperation with other Federal and State agencies, Tribes, and nongovernmental organizations (USFWS 2003). This plan is designed to detect a significant decline in territory occupancy, nest success, or productivity in six monitoring regions across the United States. These three indices of population health were low between 1950 and 1980 when Peregrine Falcon populations declined severely; the three measures then rebounded during population recovery (Cade et al. 1988, Enderson et al. 1995, USFWS 1999, White et al. 2002). The monitoring plan (USFWS 2003) calls for monitoring every three years beginning in 2003 and ending in 2015. These five monitoring periods meet the requirement of ESA (to monitor “. . . for not less than five years . . .”) and the three year interval spreads the monitoring over 13 years, reflecting the concern of the Service for the long-term future of Peregrine Falcon populations. The monitoring plan is also designed to collect baseline information on contaminant loads in each monitoring region through the annual collection and archiving of addled eggs and feather samples. Those samples will be analyzed and reported in future years. This report is of results from Peregrine Falcon monitoring in 2003, which yielded data on territory occupancy, nest success, and productivity from across the United States. This is the first report of post-delisting monitoring results for Peregrine Falcons.
Author : Michael Green,Robert Mesta,Marie Morin,Michael Amaral,Robert Currie
Publisher : Createspace Independent Pub
Page : 60 pages
File Size : 48,7 Mb
Release : 2012-08-17
Category : Nature
ISBN : 1479147729
The recovery of the American Peregrine Falcon (Falco peregrinus anatum) (Peregrines) following the species' near total disappearance from much of the United States is a remarkable story of cooperation among private and public institutions. Peregrine populations were at their lowest in the 1960s and early 1970s, when Peregrines were eliminated from the eastern United States and across the Midwest, and reduced to a few hundred pairs at most in the western United States and Mexico. Populations in Canada and Alaska were probably reduced by 70% or more (Kiff 1988, Enderson et al. 1995). The Peregrine was listed as endangered in 1970 under the Endangered Species Conservation Act of 1969, a precursor to the Endangered Species Act (ESA) of 1973 (16 U.S.C. 1537-1544; see Mesta (1999) for a history of listing actions). Recovery plans outlined the goals that were to be reached in four regions of the United States before the Peregrine could be considered recovered (USFWS 1982a, 1982b, 1984, 1991). Due to a ban on the use of DDT and other chlorinated hydrocarbons, and to successful captive breeding, rearing, and release of over 6,000 Peregrines, there are now over 2,000 pairs breeding each year across the United States (White et al. 2002), more than 400 pairs in Canada (U. Banasch, pers. commun. Feb. 7, 2003), and an estimated 170 pairs in Mexico (Enderson et al. 1995); in addition there are probably as many unpaired “floaters” as paired birds across their range (White et al. 2002). As a result of this comeback and because other recovery goals such as estimates of productivity, thicker egg-shells, and reduced levels of contaminants were nearly completely met in all recovery regions, the Peregrine was removed from the FWS List of Threatened and Endangered Species on August 25, 1999 (64 FR 46541, Mesta 1999). Population growth has continued since delisting (FWS, unpubl. data). This monitoring plan was developed by the U.S. Fish and Wildlife Service (FWS) in cooperation with State resource agencies, recovery team members, representatives from each FWS Region, the Divisions of Migratory Birds, Endangered Species, and other partners. Comments received on previous drafts strengthened this plan in several ways. In particular, we acknowledge the statistical assistance of Bob Steidl, University of Arizona, Tucson, and the International Association for Fish and Wildlife Agencies for their assistance distributing the plan for review by State resource agencies. In preparation for writing this plan, monitoring data were solicited from individuals nationwide (Appendix B). The FWS relied heavily on this information in formulating this plan and will continue to rely on this network to achieve its objectives. Post-delisting monitoring will be successful only through the same multi-partner cooperation through which recovery was accomplished.
Author : Rocky Mountain/Southwestern Peregrine Falcon Recovery Team (U.S.)
Publisher : Unknown
Page : 210 pages
File Size : 43,8 Mb
Release : 1977
Category : Birds
ISBN : WISC:89038495115
Author : Anonim
Publisher : Unknown
Page : 328 pages
File Size : 53,8 Mb
Release : 2014
Category : Delegated legislation
ISBN : OSU:32437123431641
Author : Anonim
Publisher : Unknown
Page : 146 pages
File Size : 48,5 Mb
Release : 1984
Category : Birds
ISBN : UOM:39015053998582
Author : Anonim
Publisher : Unknown
Page : 582 pages
File Size : 55,6 Mb
Release : 2005
Category : Electronic
ISBN : NWU:35556036063113
Author : Anonim
Publisher : Unknown
Page : 304 pages
File Size : 54,6 Mb
Release : 1999
Category : Ecosystem management
ISBN : IND:30000046859587
Author : Anonim
Publisher : Unknown
Page : 538 pages
File Size : 55,6 Mb
Release : 2005
Category : Electronic
ISBN : NWU:35556034778431
Author : Anonim
Publisher : Unknown
Page : 636 pages
File Size : 47,7 Mb
Release : 2009
Category : Electronic
ISBN : NWU:35556038302816
Author : Anonim
Publisher : Unknown
Page : 260 pages
File Size : 41,8 Mb
Release : 2005
Category : Electronic
ISBN : NWU:35556034775312
Author : Anonim
Publisher : Unknown
Page : 878 pages
File Size : 49,6 Mb
Release : 2011
Category : Electronic
ISBN : NWU:35556040918344
Author : Anonim
Publisher : Unknown
Page : 308 pages
File Size : 49,7 Mb
Release : 2005
Category : Electronic
ISBN : NWU:35556036054963
Author : Anonim
Publisher : Unknown
Page : 440 pages
File Size : 51,8 Mb
Release : 2004
Category : Electronic
ISBN : NWU:35556034584920
Author : Anonim
Publisher : Unknown
Page : 866 pages
File Size : 53,9 Mb
Release : 2000
Category : Electronic
ISBN : NWU:35556031861909